Tours leave at about 3 P.M. so participants can observe the crater's glow by night.

In another study by Tversky and Kahneman, participants observed a roulette wheel that was predetermined to stop on either 10 or 65.

But as one former participant in the battle observed, "Nobody should expect that this is going to clean up the union."

Study 1: In this study, randomly assigned participants observed other participants solving problems.

At each class, the 12 to 15 participants will observe Chef Sharma's demonstrations, then cook the dishes themselves.

The anchor asks participants to observe the position of the props very carefully.

"We find a brotherhood behind this," one participant observes, "and it's disgusting, because we all know that it's sick."

Tomorrow from 10:30 a.m. to 5 p.m., 31st Astronomy Day, when participants can observe sunspots and read a star map.

The participant observes a scene which shows at least one foreground object against a background.

It "would not have occurred if Critical Mass participants observed the law," Mr. Browne said.